Preadmission morbidity and healthcare utilization among older adults with potentially avoidable hospitalizations: a Danish case-control study.

PURPOSE: Examine preadmission diagnoses, medication use, and preadmission healthcare utilization among older adults prior to first potentially avoidable hospitalizations. METHODS: A nationwide population-based case-control study using Danish healthcare data. All Danish adults aged ≥ 65 years who had a first potentially avoidable hospitalization from January 1995 through March 2019 (n = 725,939) were defined as cases, and 1:1 age- and sex-matched general population controls (n = 725,939). Preadmission morbidity and healthcare utilization were assessed based on a complete hospital diagnosis history within 10 years prior, and all medication use and healthcare contacts 1 year prior. Using log-binomial regression, we calculated adjusted prevalence ratios (PR) with 95% confidence intervals (CI). RESULTS: Included cases and controls had a median age of 78 years and 59% were female. The burden of preadmission morbidity was higher among cases than controls. The strongest associations were observed for preadmission chronic lung disease (PR 3.8, CI 3.7-3.8), alcohol-related disease (PR 3.1, CI 3.0-3.2), chronic kidney disease (PR 2.4, CI 2.4-2.5), psychiatric disease (PR 2.2, CI 2.2-2.3), heart failure (PR 2.2, CI 2.2-2.3), and previous hospital contacts with infections (PR 2.2, CI 2.2-2.3). A high and accelerating number of healthcare contacts was observed during the months preceding the potentially avoidable hospitalization (having over 5 GP contacts 1 month prior, PR 3.0, CI 3.0-3.0). CONCLUSION: A high number of healthcare contacts and preadmission morbidity and medication use, especially chronic lung, heart, and kidney disease, alcohol-related or psychiatric disease including dementia, and previous infections are strongly associated with potentially avoidable hospitalizations.

The 30-day prognosis of chronic-disease patients after contact with the out-of-hours service in primary healthcare.

OBJECTIVE: Little is known about the prognosis of patients with chronic disease who contact the out-of-hours (OOH) service in primary care. The characteristics of contacts with the Danish out-of-hours service and daytime general practice, hospitalization, and death were studied during a 30-day follow-up period in patients with chronic heart diseases. DESIGN: Cohort study. SETTING AND SUBJECTS: The study was based on data from 11 897 adults aged 18 + years from a Danish survey of OOH contacts, including information on consultation type. Reason for encounter (RFE) was categorized by OOH GPs at triage as either "exacerbation" or "new health problem". Registry data were used to identify eligible patients, and the cohort was followed for 30 days after OOH contact through nationwide registries on healthcare use and mortality. MAIN OUTCOME MEASURES: The 30-day prognosis of chronic-disease patients after OOH contact. RESULTS: Included patients with chronic disease had a higher risk of new OOH contact, daytime GP contact, and hospitalization than other patients during the 30-day follow-up period. OOH use was particularly high among patients with severe mental illness. A strong association was seen between chronic disease and risk of dying during follow-up. CONCLUSION: Patients with chronic disease used both daytime general practice and the out-of-hours service more often than others during the 30-day follow-up period; they were more often hospitalized and had higher risk of dying. The findings call for a proactive approach to future preventive day care and closer follow-up of this group, especially patients with psychiatric disease.

Daytime use of general practice and use of the out-of-hours primary care service for patients with chronic disease: a cohort study.

BACKGROUND: The importance of proactive chronic care has become increasingly evident. Yet, it is unknown whether the use of general practice (GP) during daytime may affect the use of Out-of-Hours (OOH) Primary Care Service for people with chronic disease. We aimed to analyse the association between use of daytime general practice (GP) and use of OOH services for heart disease, lung disease, diabetes, psychiatric disease, or cancer. In particular, we intended to study the association between OOH contacts due to chronic disease exacerbation and recent use of daytime GP. METHODS: Data comprised a random sample of contacts to the OOH services ('LV-KOS2011'). Included patients were categorised into the following chronic diseases: heart disease, lung disease, diabetes, psychiatric disease, or cancer. Information on face-to-face contacts to daytime GP was obtained from the Danish National Health Insurance Service Registry and information about exacerbation or new episodes from the LVKOS2011 survey. Associations between number of regular daytime consultations and annual follow-up consultations during one, three, six, and 12 months prior to index contacts, and outcomes of interest were estimated by using logistic regression. RESULTS: In total, 11,897 patients aged ≥ 18 years were included. Of these, 2,665 patients (22.4%) were identified with one of the five selected chronic diseases; 673 patients (5.7%) had two or more. A higher odds ratio (OR) for exacerbation as reason for encounter (RFE) at the index contact was observed among patients with psychiatric disease (OR = 2.15) and cancer (OR = 2.17) than among other patients for ≥2 daytime recent contacts. When receiving an annual follow-up, exacerbation OR at index contact lowered for patients with lung disease (OR = 0.68), psychiatric disease (OR = 0.42), or ≥2 diseases (OR = 0.61). CONCLUSION: Recent and frequent use of daytime GP for patients with the selected chronic diseases was associated with contacts to the OOH services due to exacerbation. These findings indicate that the most severely chronically ill patients tend to make more use of general practice. The provision of an annual follow-up daytime GP consultation may indicate a lower risk of contacting OOH due to exacerbation.

Chronic-disease patients and their use of out-of-hours primary health care: a cross-sectional study.

BACKGROUND: The general practitioner (GP) plays an important role for chronic disease care. Continuous and close contact with daytime general practice is intended to prevent medical problems arising outside office hours due to already diagnosed chronic disease. However, previous studies indicate that patients with chronic diseases are frequent users of out-of-hours primary care services (OOH), but knowledge is limited on reasons for encounter (RFE), severity of symptoms, and OOH patient handling. We aimed to describe contacts to the OOH services from patients with chronic heart disease, lung disease, severe psychiatric disorders, diabetes, and cancer in terms of RFE, OOH GP diagnosis, assessed severity of symptoms, and actions taken by the GP. METHODS: Eligible patients (aged 18 years and older) were randomly sampled from a one-year cross-sectional study comprising 15,229 contacts to the OOH services in the Central Denmark Region. A cohort of patients with one or more of the five selected chronic diseases were identified by linking data on the Danish civil registration number (CPR) through specific nationwide Danish health registers. RESULTS: Out of 13,930 identified unique patients, 4,912 had at least one of the five chronic diseases. In total, 25.9% of all calls to the OOH services came from this chronic disease patient group due to an acute exacerbation; 32.6% of these calls came from patients with psychiatric diagnoses. Patients with chronic disease were more likely to receive a face-to-face contact than the remaining group of patients, except for calls from patients with a psychiatric disorder who were more often completed through a telephone consultation. Patients with heart disease calling due to a new health problem formed the largest proportion of all OOH referrals to hospital (13.3%) compared to calls from the other groups with chronic disease (3.4-6.7%). CONCLUSIONS: A third of the patients randomly sampled by their OOH call had one or more of the five selected chronic diseases (i.e. chronic lung disease, heart disease, diabetes, psychiatric disease, or cancer). Patients with chronic disease were more often managed by OOH GPs than other patients.

A feasible method to study the Danish out-of-hours primary care service.

INTRODUCTION: The primary care out-of-hours (OOH) service is of considerable importance; it is the main provider of freely accessible medical advice outside daytime hours, and it covers 75% of the active time in the health-care system. Although the OOH handles three million contacts annually, only little is known about the reasons for encounter, the performed clinical work and the patient perspectives. MATERIAL AND METHODS: During a one-year period (2010-2011), data on patient contacts were collected using pop-up questionnaires integrated into the existing IT system. The questions explored the contents and characteristics of patient contacts. A paper-based questionnaire was sent to the included patients. RESULTS: Of all 700 general practitioners (GP) on duty, 383 (54.7%) participated at least once, and the participating GPs were representative of all GPs. In total, 21,457 contacts were registered; and the distribution of patient, contact and GP characteristics in OOH contacts was similar to the background contacts. Telephone consultations were most often offered to children and home visits primarily to elderly patients. The patient response rate was 51.2%. Females comprised the majority of the included contacts and of the respondents in the patient survey. CONCLUSION: The method was highly feasible for generating a representative sample of contacts to OOH services. The project has formed a substantial and valid basis for further studies and future research in the OOH service. FUNDING: Financed by the Region of Central Jutland, the Danish National Research Foundation for Primary Care and the Health Foundation. TRIAL REGISTRATION: not relevant.